Siemens sirius System Manual page 111

3.1 Specifications/regulations/approvals
Regulations
Standards
Approvals/
test reports
Shock protection
3.1.1 Utilization categories
SIRIUS System Manual
GWA 4NEB 430 0999-02b
The following regulations apply to contactors:
• IEC 60 947-1, EN 60 947-1 (VDE 0660 Part 100), which includes the gen-
eral specifications for low- voltage switching devices.
• IEC 60 947-4-1, EN 60 947-4-1 (VDE 0660 Part 102), which contains, in
particular, the requirements for contactors and motor starters.
The following regulations apply to auxiliary contactors:
• IEC 60 947-1, EN 60 947-1 (VDE 0660 Part 100), which includes the gen-
eral specifications for low-voltage switching devices.
• IEC 60 947-5-1, EN 60 947-5-1 (VDE 0660 Part 200) which includes, in par-
ticular, the requirements for control equipment and switching elements
for the control, signaling, locking, etc. of switchgear and controlgear.
The following standards apply to the terminal markings of the contactors:
• EN 50 012: terminal markings and identification numbers for auxiliary con-
tact elements of particular contactors (also applies to contactors with a
built-on auxiliary switch block)
• EN 50 011: terminal markings, identification numbers, and identification
letters for particular auxiliary contactors (also applies to auxiliary contac-
tors with a built-on auxiliary switch block)
• EN 50 005: terminal markings and identification numbers, general rules
Confirmation of approvals and test certificates and characteristics can be
obtained on the Internet/intranet.
The shock protection provided is in acc. with DIN VDE 0106 Part 100.
In acc. with EN 60 947-4-1, the purpose of the contactors and the stress
placed on them is indicated by the utilization category together with details
of the rated operational current or motor output and the rated voltage.
The following tables list the definitions of the utilization categories for low-
voltage switching devices and contactors from IEC 60 947 (VDE 0660) an.
The rated operational voltages for the various utilization categories are listed
in the low-voltage switching devices catalog.
3RT1/3RH1 contactors
3-3